Fan.



W. SPARKS.

FAN.

APPLICATION (FILED NOV. 21. ms.

' Patented Feb. 5, 1191s.

WILLIAM SPARKS, OF JACKSON; MICHIGAN, ASSIGNOR TO THE SPr'iRKS-VTITHINGTON COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF O HIO.

Fan. if i,a55,54te. specification meters men Patented net. 5, ii.

T 0 all whom it may concern. 7

lBe it known that l, WILLIAM SPARKS, a citizen 015 the United States of America, and resident of Jackson, in the county of Jackson, in the State of Michigan, have invented new and usefulxlmprovements in Fans, of

which the, following, taken in connection The object of'the invention is to increase the eficiency of such apparatus in its adap of automobile or "other engines either di;

cost.

Fig.

rectly or bywater circulation through radiators Or the like, and at the same time to produce a unitary structure made compactly and referabdy of comparatively thin sheet meta and assembled in such a manner as to beat once, light:,'strong, durable and capable of being manufactured at a reasonable Other objects and advantages relate to the specific details of construction, as will more fully a pear from the following description, ta en in connection with the accompanying drawin s, in which- Figure 1 is a rout elevation of the fan. Fig. 2 is a side elevation of the same.

Fig. 1.

Fig. 4 is.

, The invention, as shown, embodies a uni- 1 tary structure adapted to be mounted inany 1 any suitable manner to the web -i' and opposite end portions --6-- and -7 and and '-9--, respectively, propctmg radiallv from the central web and; constituting blades, thearms -2- extending outwardly along the respective end port ons or blades and secured to such blades In any suitabie manner, as by rivets or the like.

Application filed November 27, 1916. Serial No. 188,618.

straight line. tation to various uses, such as the cooling 3 is a cross section on line 3 3,

a cross section on line The blades ;-6-, 7, 8- and 9 are deflected so as to lie at an angle to the; plane of rotation of the fan for the usual purpose. The central web cf each of the cross members is preferably substantially circular in form, as shown, and provided wlth a central opening through the; tubular flange -3-, thereby constituting a ringshaped web fronn'wh'ich the blades radiate.

The blad'es do not radiate symmetrically fromaithe central web, one edge-portion -10 of each blad e being separated from the central web'by recess 11- while the opposite edge of the blade merges directly into the central web in substantially a The free edge portion -510 is deflected laterally with respect to the main body" of the blade so as to lie almost at right angles to the plane of rotation of the tan. Preferably, the blades are provided with reinforcing rib-s 12 and -13 extending 14--- and -1 5, formed by striking up portions of the central web 1 to assist in interlocking the parts together.

The formation and deflection of the blades as described produces a fan of high efiiciency.

As stated, the central webs 4- and ---5---- are rigidiy secured to the web -1,

as by rivets shown. The hub 3 is preferably provided intermediate its length with a radially and outwardly extending circumferential head or flange -16-, and spaced from the flange -16-.- is a second flange --17 which may, as shown, he formed by pressing outwardly the edge-por tion of the hub.

The flanges --16 and -17, together with the portion of the hub disposed between them, constitute a pulley --18- of slightly greater internal diameter than the body of the hub.-3-- for receiving any suitable driving means, such as a belt.

Disposed within the hub .-3- are a pair of oppositely arranged bearing cups -19- -2l+- and 22 fitted within the hub, and

the sleeve 22- preferably secured thereto in any suitable manner.

As shown, the sleeves are of sufficient diameter to fit tightly within the hub 3, and the sleeve -21 has its inner edge in substantial contact with the wall of bead '16' and its outer portion 23 enlarged or flanged inwardly for engagement with a radially and outwardly extending :flange 24 formed upon the bearing cup 19'-.

The sleeve 22 has its inner edge terminating adjacent a stepped portion 25 formed upon the hub 3, and its outer edge in contact with a radially and outwardly extending flange 26 formed upon the bearing cup 20.

Each of the bearing cups 19 and 20- is adapted to receive a suitable antifriction bearing comprising, as shown, balls -27 and a ball-retainer 28-, the shaft --29 being mounted in said bearings and provided adjacent the bearing cup 19- with a tapered portion -30 for contact with the balls 27.

The shaft -29 is further provided with a flange 31 and washer 32 spaced some distance from the ball-retainer -28- and adapted to confine a packing .33 pcsitioned between the washer 32 and the ball-retainer -28..

The other end of shaft .29 is preferably reduced and threaded at --34 and is provided with a bearing nut 3 5 mounted upon the threaded portion of the shaft and having a tapered portion 36 for contact with the adjacent balls -27-, and an enlarged radially extending portion 37 adapted to confine a washer 38 for holding a suitable packing -39 in proper position between the ball-retainer and the washer.

The bearing nut 35 is locked in proper position by a second nut -40 threaded in an opposite direction and mounted upon a further reduced portion -4l of shaft -29-,-. A suitable split spring washer -42 may be positioned between the bearing nut 35 and locking nut It will be noted that the free'edge-portion 10 of the blades is deflected rearwardly of shaft -29 and to that side of their respective webs upon which pulley 18 is positioned, and that all of the blades are largely deflected entirely to the pulley'side of the fan.

The shaft 29- may, as shown, extend some distance rearwardly of pulley -'18 for engagement with any suitable supporting means, a suitable nut 43- being provided in combination with a threaded end of the shaft for holding the shaft to its mountclaims.

What I claim is: I

1. In a fan, the combination'with a web having a radiating blade of a second web secured to the first-named web, one of said webs having a tubular and axially extending flange constituting a hub, spaced flanges formed integrally with said hub and radiating outwardly therefromto constitute a driving pulley, antifriction bearings within the hub, and a shaft mounted in the bearings.

2. In a fan, the combination with a web having a radiating blade of a second web secured to the first-named web, one of said webs having a tubular and axially extending flange constituting a hub, antifriction bearings within the hub, a shaft mounted in the bearings, and spaced flanges formed on said hub and radiating outwardly therefrom to constitute-a driving pulley, the diameter of the base of the pulley being greater than the tliimeter of the remaining portions of the 111 a 3. A fan comprising radiating blades, a central tubular and axially extending hub secured thereto and having an intermediate radially and outwardly extending bead and a radially and outwardly extending flange spaced from the bead, the portion of the hub between the bead and the flange being of v greater internal diameter than the body of the hub to form an outwardly stepped portion at the bead, a sleeve fitted within the portion between the hub and bead and abutting against said stepped portion, a bearing cup mounted within the sleeve, a second bearing cup mounted within the body of the hub, a shaft extending through the bearing cups and anti-friction bearings separating the shaft from the bearing cups.

4. A fan comprising radiating blades, a central tubular and axially extending hub secured thereto and having an intermediate radially and outwardly extending bead and a radially and outwardly extending flange spaced from the bead, the portion of the hub between the bead and the flange being of greater internal diameter than the body of the hub to form an outwardly stepped portion at the bead, a sleeve fitted within the portion between the hub and bead and abutting against said stepped portion, a bearing cup mounted within the sleeve, a second sleeve within the body of the hub adjacent the radiation of the blades, a bearing cup within said sleeve, a shaft extending through the bearing cups and anti-friction bearings separating the shaft from the hearing cups.

tataaae 5. A fan comprising radiating blades, a

central tubular and axially extending hub secured thereto and having an intermediate radially and outwardly extending bead and aradially andv outwardly extending flange spaced from the bead, the portion of the hub between the bead and the flange being of greater internal diameter than the body of the hub to form an outwardly stepped portion at the bead, a sleeve fitted within the portion between the hub and the bead and abutting against said stepped portion, a bearing cup mounted within a sleeve and provided with a radially and outwardly extending flange engaging the sleeve, a second sleeve within the body of the hub adjacent the radiation of the blades, a second bearing cup within said sleeve and having a radially and outwardly extending flange engaging the sleeve, a shaft extending through the bearing cups and anti-friction bearings separating the shaft from the bearing cups.

6. A fan comprising radiating blades, a central tubular axially extending hub secured to the blades, a dished shaped bearing cup in each end of the hub, said bearing cups having radially and outwardly extending flanges at their edges engaged with the hub and havin alined openings in their bases, balls within the cups, a shaft extending through the openings in the'bearing cups, said shaft having radially projecting portions engaged with the balls in said cups.

fan comprising radiating blades, a

central tubular axially extending hub sea cured to the blades, a dished shaped bearing cup in each end of the hub, said bearing cups having radially and outwardly extending flanges at theiredges engaged with the hub and having alined openings in their bases, balls within the cups, a shaft extending through the openings, in the bearing cups, said shaft having radially projecting portions engaged with the balls in said cups,

and a lock nut mounted on the shaft to lock the parts in predetermined position. 8. A fan comprising radiatingblades, a central tubular axially extending hub secured to the blades, a dished shaped bear ng cup in each end of the hub, said bearing cups disposed in opposite directions and having radially and. outwardly extendmg flanges at their edges engaged with the hub and limiting movement of the bearingcups toward each other and having alined openings in their bases, ballswithln the cups,; a shaft extending through the openings in the bearing cups, said shaft having radially projecting portions engaged with the balls in said cups.

9. A fan comprising radiating blades, a central tubular axially extending hub secured to the blades, a dished shaped bearing jecting portions engaged with the balls in said cups, one of sald portions being adjustable on saidshaft, and means for locking the adjustable portion in predetermined position.

10. In a fan a pair of crossed members having central portlons lying in contact with each other and a web secured to the contacting portion of said crossed members and having a tubular and axially extending flange constituting the hub.

11. In a fan, a central web and a blade radiating therefrom, the blade having one of its longitudinal edges merging into and connected to the web, the opposite longitudinal edge being separated from the web, the entire blade being deflected with respect to the plane of rotation of the blade, the free edge portion of the. blade being further deflected relatively to the portion of the blade antifricti'on bearings between the shaft and hub.

14. In afan, the. combination with a series of radiating blades of a web secured to the extending integral flange, a i

blades, said web having a tubular and axially extending flange constituting a hub,

said tubular flange provided with a pair of spaced substantially radially extending flanges forming an interveningchannel extendin around the hub.

15; fan comprising radiating blades, a central tubular axially extending hub secured to the blades, said hub having an intermediate radially and outwardly extending bead, and a radially and outwardly extending flange spaced from the head, the portion of the hub between the bead and the flange being of greater diameter than the body of the hub to form an outwardly stepped portion at the bead,'a. sleeve fitted within the portion between the hub and the bead, a second sleeve fitted within the opposite end of the hub and secured thereto, a dished shaped bearing cup within each sleeve, said bearing cups disposed in opposite directions and having radially and outwardly extending flanges at their edges engaged with the sleeves and limiting movement of the bearing cups toward each other and having alined Openings in their bases, balls within the cups, a shaft extending through the openings in the bearing cups, said sh aft having radially projecting portions engaged with the balls in said cups.

16. A fan comprising radiating blades, a central tubular axially extending hub secured to the blades, said hub having an intermediate radially and outwardly extending bead and a radially and outwardly extending flange spaced from the bead, the portion of the hub between the bead and the flange being of greater diameter than the body of the hub to form an outwardly stepped portion at the bead, a sleeve fitted within the portion between .the hub and the bead, a second sleeve fitted within the opposite end of the hub and secured thereto, a dished shaped bearing cup within each sleeve, said bearing cups disposed in opposite directions and having radially and outtendin wardly extending flanges at their edges en gaged with the sleeves and limiting movement of the bearing cups toward each other and having alined openings in their bases, balls within the cups, a shaft extending through the openings in the bearing cups, said shaft having radially projecting portions engaged with the balls in said cups,

one of said portions being adjustable on said shaft, and means for locking the ad-.

justable portion in predetermined position.

17. In a-fan, the combination with a web having a series of radiating blades of a second web lying in substantial contact with the first-named web and secured thereto, said second web having a tubular and axially extending flange constituting a hub said tubular flange rovided with a pair of spaced substantial y radially extending flanges forming an intervening channel exaround the hub.

18. n a fan, the combination with a pair of crossed blade-forming members having ring-shaped hubs of a web secured to said hubs and having a tubular axially extending flange, said tubular flange provided with a pair of spaced substantially radially extendmg flanges forming an intervening channel extending around the hub, a shaft within the hub, and antifriction bearings between the shaft and hub.

l9.- A fan-comprising radiating blades, a central tubular axially extendin hub secured to the blades, said hub having a pair of spaced radially and outwardly extending flanges disposed at the same side of the blades and forming an intervening channel extending around the hub, a bearing cup in each end of the hub, one of the same being adjacent the radiation of the blades and the other adjacent the radiation of said flanges, said bearing cups having radially and outwardly extending flanges at their edges engaged with the'hub and having alined openings in their bases, balls within the cups, a shaft extending through the openings in the bearing cup and having radially projecting portions engaged with the balls in said cups.

20. A fan comprising radiating blades, :1 central tubular axially extending hub secured to the blades, said hub having a radially enlarged portion and spaced radially and outwardly extending flanges forming an intervening channel at the radially enlarged portion, a bearing cup in each end of the hub, one of the same being adjacent the radiation of the blades and the other adjacent the radiation of said flanges, said bearing cups having radially and outwardly extending flanges at their edges engaged with the hub and having alined openings in,,,their bases, balls within the cups, a shaft extending through the openings in the bear- 21. In a fan, the combination with a series of radiating'blades, of a web secured to the blades, said web h'avin an elongated tubular and axially extending flange constituting a hub, said hub having a radially enlarged portion and spaced radially and outwardly extending flanges forming an intervening channel at the radially enlarged portion of the hub, ball bearings within the hub, and a shaft mounted in said bearings.

'In witness whereof I have hereunto set my hand this 18th day of November, 1916.

WILLIAM SPARKS.

Witnesses:

,LILLIAN E. WUNDERLICH,

HENRY C. MENKE. 

